# \[Archive\] Diference between SPIS-UI and PICKUP-3D
**URL:** https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460
**Category:** SPIS
**Created:** [30 September 2009 19:28 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460 "2009-09-30T19:28:00Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@system](https://forum.spis.org/u/system)
#### Post date: [30 September 2009 19:28 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460/1 "2009-09-30T19:28:00Z")
Message by **Ignacio Rocca** :
Hi, are there some diference between SPIS-UI and PICKUP-3D simulation?, did someone ran both simulations on SPIS? Thanks for your time!
Ignacio
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### Author:  [@system](https://forum.spis.org/u/system)
#### Post date: [30 September 2009 21:11 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460/2 "2009-09-30T21:11:00Z")
Message by **Ignacio Rocca** :
Sorry but is SPIS-NUM and PicUP3D
Ignacio
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### Author:  [@system](https://forum.spis.org/u/system)
#### Post date: [30 September 2009 21:18 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460/3 "2009-09-30T21:18:00Z")
Message by **Benoit Thiebault** :
PicUp3D is a PIC simulation software that was created before SPIS by Julien Forest.
You can find out more on PicUp on the dedicated web site [\http://dev.spis.org/projects/spine/home/picup.](http://dev.spis.org/projects/spine/home/picup.)
There are a lot of differences between the two software.
SPIS uses unstructured mesh while PicUp3D uses cartesian structured mesh. The models differ as well.
SPIS is more configurable and offers more possibilities for S/C charging modelling
Regards
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### Author:  [@system](https://forum.spis.org/u/system)
#### Post date: [30 September 2009 22:05 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460/4 "2009-09-30T22:05:00Z")
Message by **Ignacio Rocca** :
> [@](#):
>
> PicUp3D is a PIC simulation software that was created before SPIS by Julien Forest.
> You can find out more on PicUp on the dedicated web site [\http://dev.spis.org/projects/spine/home/picup.](http://dev.spis.org/projects/spine/home/picup.)
> There are a lot of differences between the two software.
> SPIS uses unstructured mesh while PicUp3D uses cartesian structured mesh. The models differ as well.
> SPIS is more configurable and offers more possibilities for S/C charging modelling
> Regards
Thanks Benoit, my question now is, can I simulate the same project with every simulator? Or I need pre-process every project before the simualtion.
Best Regards
Ignacio
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### Author:  [@system](https://forum.spis.org/u/system)
#### Post date: [30 September 2009 22:14 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460/5 "2009-09-30T22:14:00Z")
Message by **Benoit Thiebault** :
I’m affraid you have to prepare a difference simulation for each tool
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### Author:  [@system](https://forum.spis.org/u/system)
#### Post date: [30 September 2009 22:28 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460/6 "2009-09-30T22:28:00Z")
Message by **Ignacio Rocca** :
> [@](#):
>
> I’m affraid you have to prepare a difference simulation for each tool
Ok, can you tell me where can I find some guide or manual to prepare a simulation to picUp3D with SPIS?
Thanks for your time
Ignacio
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### Author:  [@system](https://forum.spis.org/u/system)
#### Post date: [10 July 2020 11:31 UTC](https://forum.spis.org/t/archive-diference-between-spis-ui-and-pickup-3d/460/7 "2020-07-10T11:31:03Z")